1: (0 9 16)

(0)(1 19 4)(2 13 3)(5 9 18 16 7)(6 15 14)(8 12 10 17 11)

2: (8 17 11)

(0)(1 19 4)(2 13 3)(5 9 18 16 7)(6 15 14)(8)(10 17 12)(11)

3: (7 18 16)

(0)(1 19 4)(2 13 3)(5 9 18)(6 15 14)(7)(8)(10 17 12)(11)(16)

4: (10 17 12)

(0)(1 19 4)(2 13 3)(5 9 18)(6 15 14)(7)(8)(10)(11)(12)(16)(17)